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Part A: The sun produces 3.9 ⋅ 10^33 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 2.45 ⋅ 10^5 seconds? (5 points) Part B: Which is the more reasonable measurement of the distance between the tracks on a DVD: 7.4 ⋅ 10^−4 mm or 7.4 ⋅ 10^4 mm? Justify your answer. (5 points) please help super stuck

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